A tuple in Python is an immutable ordered collection of elements. Tuples are similar to lists, but unlike lists, they cannot be changed after their creation (i.e., they are immutable). Tuples can hold elements of different data types. The main characteristics of tuples are being ordered , heterogeneous and immutable.
Creating a Tuple
A tuple is created by placing all the items inside parentheses (), separated by commas. A tuple can have any number of items and they can be of different data types.
Example:
Python tup = () print(tup) # Using String tup = ('Geeks', 'For') print(tup) # Using List li = [1, 2, 4, 5, 6] print(tuple(li)) # Using Built-in Function tup = tuple('Geeks') print(tup) Output() ('Geeks', 'For') (1, 2, 4, 5, 6) ('G', 'e', 'e', 'k', 's') Let's understand tuple in detail:
Creating a Tuple with Mixed Datatypes.
Tuples can contain elements of various data types, including other tuples, lists, dictionaries and even functions.
Example:
Python tup = (5, 'Welcome', 7, 'Geeks') print(tup) # Creating a Tuple with nested tuples tup1 = (0, 1, 2, 3) tup2 = ('python', 'geek') tup3 = (tup1, tup2) print(tup3) # Creating a Tuple with repetition tup1 = ('Geeks',) * 3 print(tup1) # Creating a Tuple with the use of loop tup = ('Geeks') n = 5 for i in range(int(n)): tup = (tup,) print(tup) Output(5, 'Welcome', 7, 'Geeks') ((0, 1, 2, 3), ('python', 'geek')) ('Geeks', 'Geeks', 'Geeks') ('Geeks',) (('Geeks',),) ((('Geeks',),),) (((('Geeks',),),),) ((((('Geeks',),),),),) Python Tuple Basic Operations
Below are the Python tuple operations.
- Accessing of Python Tuples
- Concatenation of Tuples
- Slicing of Tuple
- Deleting a Tuple
Accessing of Tuples
We can access the elements of a tuple by using indexing and slicing, similar to how we access elements in a list. Indexing starts at 0 for the first element and goes up to n-1, where n is the number of elements in the tuple. Negative indexing starts from -1 for the last element and goes backward.
Example:
Python # Accessing Tuple with Indexing tup = tuple("Geeks") print(tup[0]) # Accessing a range of elements using slicing print(tup[1:4]) print(tup[:3]) # Tuple unpacking tup = ("Geeks", "For", "Geeks") # This line unpack values of Tuple1 a, b, c = tup print(a) print(b) print(c) OutputG ('e', 'e', 'k') ('G', 'e', 'e') Geeks For Geeks Concatenation of Tuples
Tuples can be concatenated using the + operator. This operation combines two or more tuples to create a new tuple.
Note: Only the same datatypes can be combined with concatenation, an error arises if a list and a tuple are combined.
Python tup1 = (0, 1, 2, 3) tup2 = ('Geeks', 'For', 'Geeks') tup3 = tup1 + tup2 print(tup3) Output(0, 1, 2, 3, 'Geeks', 'For', 'Geeks')
Slicing of Tuple
Slicing a tuple means creating a new tuple from a subset of elements of the original tuple. The slicing syntax is tuple[start:stop:step].
Note- Negative Increment values can also be used to reverse the sequence of Tuples.
Python tup = tuple('GEEKSFORGEEKS') # Removing First element print(tup[1:]) # Reversing the Tuple print(tup[::-1]) # Printing elements of a Range print(tup[4:9]) Output('E', 'E', 'K', 'S', 'F', 'O', 'R', 'G', 'E', 'E', 'K', 'S') ('S', 'K', 'E', 'E', 'G', 'R', 'O', 'F', 'S', 'K', 'E', 'E', 'G') ('S', 'F', 'O', 'R', 'G') Deleting a Tuple
Since tuples are immutable, we cannot delete individual elements of a tuple. However, we can delete an entire tuple using del statement.
Note: Printing of Tuple after deletion results in an Error.
Python tup = (0, 1, 2, 3, 4) del tup print(tup)
Output
ERROR!
Traceback (most recent call last):
File "<main.py>", line 6, in <module>
NameError: name 'tup' is not defined
Tuples Programs
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